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公开(公告)号：US11149041B2
公开(公告)日：2021-10-19
申请号：US16305875
申请日：2017-05-30
IPC分类号： C07F5/00 , C07C213/02 , C07C227/02 , C07C227/18 , C07C269/04 , C07C269/06 , C07C271/02 , C07C303/04 , C07C309/24
摘要： The present invention discloses a novel process for the preparation of gadolinium complex of (4S)-4-(4-Ethoxybenzyl)-3,6,9-tris(carboxylatomethyl)-3,6,9-triazaundecanedioic acid disodium of formula 1 and novel intermediates thereof.
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公开(公告)号：US10882813B2
公开(公告)日：2021-01-05
申请号：US15536807
申请日：2015-12-17
发明人： Manik Reddy Pullagurla , Mecheril Valsan Nanda Kumar , Jagadeesh Babu Rangisetty , Rajesh Bhudeti , Radha Nagarapu
IPC分类号： C07C51/41 , C07C51/43 , A23L33/16 , A23L33/165 , C07C59/265
摘要： The present invention relates to an improved method for the synthesis of Ferric Citrate and also to provide an amorphous form of Ferric Citrate having an active surface area less than 14 sq.m/g.
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公开(公告)号：US10647655B2
公开(公告)日：2020-05-12
申请号：US16329770
申请日：2017-09-01
发明人： Manik Reddy Pullagurla , Mecheril Valsan Nanda Kumar , Madhusudhana Rao Veligetla , Jagadeesh Babu Rangisetty
摘要： An improved method for the synthesis of substantially pure Permethrin having purity greater than 99.5% by Gas Chromatography provided. The embodiments also relates to a purification process of Permethrin by recrystallization from methanol-water mixture.
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4.发明授权Process for the preparation of (1-{9-[(4S, 2R, 3R, 5R)-3, 4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl)-6-aminopurin-2-yl}pyrazole-4-yl)-N-methylcarboxamide 有权制备（1- {9 - [（4S，2R，3R，5R）-3,4-二羟基-5-（羟甲基）氧杂环戊烷-2-基）-6-氨基嘌呤-2-基} 吡啶-4-基）-N-甲基甲酰胺公开(公告)号：US09580457B2
公开(公告)日：2017-02-28
申请号：US14438998
申请日：2013-10-28
IPC分类号： C07H19/22 , C07H19/16 , C07H1/00 , C07H19/167
CPC分类号： C07H19/16 , C07H1/00 , C07H19/167
摘要： The present invention relates to a novel process for the preparation of (1-{9-[(4S,2R,3R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl)-6-aminopurin-2-yl}pyrazole-4-yl)-N-methylcarboxamide.
摘要翻译： 本发明涉及制备（1- {9 - [（4S，2R，3R，5R）-3,4-二羟基-5-（羟甲基）氧杂环戊烷-2-基）-6-氨基嘌呤 -2-基}吡唑-4-基）-N-甲基甲酰胺。
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公开(公告)号：US20160115191A1
公开(公告)日：2016-04-28
申请号：US14894343
申请日：2014-05-28
发明人： Jagadeesh Babu RANGISETTY , Manik Reddy PULLAGURLA , Mecheril Valsan NANDAKUMAR , Dokula Neelam NAIDU
IPC分类号： C07H19/16
CPC分类号： C07H19/16 , C07B2200/13 , C07H19/167
摘要： The invention provides a novel polymorph of Regadenoson. More particularly, the invention provides propylene glycol solvate of Regadenoson. The invention also provides a process for the preparation of propylene glycol solvate of Regadenoson.
摘要翻译： 本发明提供了Regadenoson的新型多晶型物。 更具体地，本发明提供了Regadenoson的丙二醇溶剂化物。 本发明还提供了Regadenoson的丙二醇溶剂化物的制备方法。
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6.发明公开公开(公告)号：US20240343675A1
公开(公告)日：2024-10-17
申请号：US18684974
申请日：2022-08-19
IPC分类号： C07C211/29
CPC分类号： C07C211/29
摘要： An improved process for the preparation of N-ethyl-α-methyl-3-(trifluoromethyl) phenethylamine hydrochloride is provided, having purity greater than 99.5% by HPLC using highly pure 3-(trifluoromethyl) aniline hydrochloride as a key starting material. The disclosed provides process for the purification of N-ethyl-α-methyl-3-(trifluoromethyl) phenethylamine hydrochloride, which is substantially free of Impurity A and Impurity B.
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公开(公告)号：US20220017650A1
公开(公告)日：2022-01-20
申请号：US17312382
申请日：2019-12-11
发明人： Manik Reddy PULLAGURLA , Bhaskar Reddy PITTA , Suresh Babu NAMANA , Maheswara Rao GOKADA , Jagadeesh Babu RANGISETTY
摘要： The present invention relates to an improved process for the preparation of Sugammadex sodium (1). It further relates to a novel process for the purification of Sugammadex sodium (1) having impurity A less than 2% (w/w) and impurity E less than 0.1% (w/w)
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8.发明申请公开(公告)号：US20200087325A1
公开(公告)日：2020-03-19
申请号：US16579879
申请日：2019-09-24
发明人： Manik Reddy PULLAGURLA , Mecheril Valsan NANDA KUMAR , Bhaskar Reddy PITTA , Jagadeesh Babu RANGISETTY
摘要： The invention relates to novel process for preparation of Tavaborole. The invention also relates to novel polymorphic forms of Tavaborole and process for preparation of those polymorphic forms. The invention also relates to process for purification of Tavaborole to obtain the Tavaborole in significantly high yield and substantially pure form.
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公开(公告)号：US20190256459A1
公开(公告)日：2019-08-22
申请号：US16302103
申请日：2017-05-01
发明人： Manik Reddy PULLAGURLA , Mecheril Valsan NANDA KUMAR , Bhaskar Reddy PITTA , Jagadeesh Babu RANGISETTY
IPC分类号： C07C303/38 , C07C303/40 , C07C303/44 , C07C201/12 , C07C209/32
摘要： The present invention provides a novel and commercially viable process with high yield for the preparation of (E)-N-hydroxy-3-(3-phenylsulfamoyl-phenyl)-acrylamide, also known as Belinostat (I). The invention also provides process for purification and novel crystalline form of Belinostat in substantially pure form.
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公开(公告)号：US20190194118A1
公开(公告)日：2019-06-27
申请号：US16329770
申请日：2017-09-01
发明人： MANIK REDDY PULLAGURLA , MECHERIL VALSAN NANDA KUMAR , Madhusudhana Rao VELIGETLA , JAGADEESH BABU RANGISETTY
CPC分类号： C07C67/14 , A01N53/00 , C07B2200/09 , C07C67/52 , C07C2601/02 , C07C69/743
摘要： The present invention describes an improved method for the synthesis of substantially pure Permethrin (1) having purity greater than 99.5% by Gas Chromatography (GC). The invention also relates to a purification process of Permethrin by recrystallization from methanol-water mixture.
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